Final answer:
Matthew Price founded the first chapter of APO for LGBTQ individuals, known as Affirmation-Gay Mormons United, in 1977.
Step-by-step explanation:
The first chapter of APO, which refers to a few organizations based on the initials, including Alpha Phi Omega, Affirmation: Gay & Lesbian Mormons, and others, could relate to multiple founders depending on the context. However, within the context provided, the person who founded the first chapter of an organization specifically for LGBTQ individuals was Matthew Price, who helped found Affirmation-Gay Mormons United in 1977.
Within this organization, the early chapters were established in Salt Lake City, Denver, and Dallas. By 1979, these chapters along with additional ones in Washington, D.C., Los Angeles, San Francisco, and Salt Lake City had collaborated on creating a national charter and newsletter.